Properties of Pantellerite lan Chert
ukuran gandum
grained nggoleki
banget nggoleki-grained
rengat
sub-conchoidal
ora rata, splintery utawa conchoidal
porosity
kurang keropos
Highly keropos
luster
earthy
waxy lan kurang
kekuatan compressive
ora Sumadhiya
cleavage
conchoidal
non-ana
tartamtu gravitasi
ora Sumadhiya
2.5-2.8
transparan
tembus kanggo opaque
tembus kanggo opaque
Kapadhetan
ora Sumadhiya
2.7 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas
tahan panas, impact tahan, meksa tahan, nyandhang tahan